CVE-2024-41039

Kernel crash via undersized WMFW header check

Published Jul 29, 2024 · Updated May 11, 2026

Heap buffer overflow in the Linux cs_dsp firmware loader allows local users to crash the kernel via crafted WMFW firmware. The size guard uses the shorter wmfw_adsp1_sizes layout before parsing ADSP2 or Halo Core firmware, leaving four header bytes unchecked before access. Exploitation requires elevated privileges to supply specially crafted Cirrus Logic DSP firmware; failure can stop the audio driver or crash the kernel at boot or runtime.

CVSS severity7.8
High
EPSS probability0.28%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Heap buffer overflow in the Linux cs_dsp firmware loader allows local users to crash the kernel via crafted WMFW firmware. The size guard uses the shorter wmfw_adsp1_sizes layout before parsing ADSP2 or Halo Core firmware, leaving four header bytes unchecked before access. Exploitation requires elevated privileges to supply specially crafted Cirrus Logic DSP firmware; failure can stop the audio driver or crash the kernel at boot or runtime.

The record

CVE
CVE-2024-41039
Published
Jul 29, 2024
Updated
May 11, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
CWE-122, T1499.004
Attack vector
local
Privileges
admin

Timeline

How it unfolded

  1. Jul 29, 2024CVE publishedPublication date reported by the CVE source.
  2. May 11, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=5.16
  2. Affected versionversion=f6bc909e7673c30abcbdb329e7d0aa2e83c103d7 <3019b86bce16fbb5bc1964f3544d0ce7d0137278
  3. Affected versionversion=f6bc909e7673c30abcbdb329e7d0aa2e83c103d7 <49a79f344d0a17c6a5eef53716cc76fcdbfca9ba
  4. Affected versionversion=f6bc909e7673c30abcbdb329e7d0aa2e83c103d7 <9c9877a96e033bf6c6470b3b4f06106d91ace11e
  5. Affected versionversion=f6bc909e7673c30abcbdb329e7d0aa2e83c103d7 <fd035f0810b33c2a8792effdb82bf35920221565

What conditions does exploitation require?

Attack vectorlocal
Required privilegesadmin

What is affected?

The Linux Kernel Organization · Linuxversion=5.16; version=f6bc909e7673c30abcbdb329e7d0aa2e83c103d7 <3019b86bce16fbb5bc1964f3544d0ce7d0137278; version=f6bc909e7673c30abcbdb329e7d0aa2e83c103d7 <49a79f344d0a17c6a5eef53716cc76fcdbfca9ba; version=f6bc909e7673c30abcbdb329e7d0aa2e83c103d7 <9c9877a96e033bf6c6470b3b4f06106d91ace11e; version=f6bc909e7673c30abcbdb329e7d0aa2e83c103d7 <fd035f0810b33c2a8792effdb82bf35920221565

Published CVSS scores

7.8NVDCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
5.2Red HatCVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:L/I:L/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesadmin
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-122Heap-based Buffer Overflow
T1499.004Application or System Exploitation

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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